Round steel forming die

Abstract

The utility model relates to a round steel forming die which comprises an upper die and a lower die, a middle protrusion protruding upwards is arranged in the middle of the upper end of the lower die, a lower die left protrusion and a lower die right protrusion protruding upwards are arranged on the left side and the right side of the middle protrusion at the upper end of the lower die respectively, and a left forming groove is formed between the lower die left protrusion and the middle protrusion. A right side forming groove is formed between the lower die right side protrusion and the middle protrusion, the upper die is provided with an upper die left side forming protrusion which is used in cooperation with the left side forming groove and protrudes downwards, and the upper die is further provided with an upper die right side forming protrusion which is used in cooperation with the right side forming groove and protrudes downwards. An upper die middle groove used in cooperation with the middle protrusion is formed between the upper die left side forming protrusion and the upper die right side forming protrusion. The round steel forming die can be used in cooperation with a press machine, and two grooves can be formed in round steel in a bending mode at a time.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a round steel forming die used for round steel bending and forming. Background Art

[0002] Round steel is a common steel material in the field of mechanical processing. When it is used, it needs cutting, bending, welding and other operations. Bending is an important step in the mechanical processing of round steel. When bending round steel, the corresponding bending mold is required.

[0003] Existing round steel bending molds, such as the "universal round steel bending mold" disclosed in Chinese patent CN207222651U, include a positioning track and a forming wrench. The positioning track is composed of a gap formed by two rows of positioning columns arranged horizontally, the gap matches the outer diameter of the round steel, and the positioning columns are movably fixed on the bottom plate. The forming wrench is connected to the bottom plate through a first bending rod and a second bending rod. The first bending rod and the second bending rod are arranged in a staggered manner. The gap formed by the first bending rod and the second bending rod is equal to the gap between the two rows of positioning columns. The first bending rod is arranged on the opposite side of one of the rows of positioning columns.

[0004] When in use, the round steel is placed in the positioning track, and the second bending rod is rotated around the first bending rod by the forming handle to complete the bending of the round steel. The existing round steel forming mold has the following problems: it is only suitable for simple elbow bending. When the round steel needs to be bent into a more complex structure, not only the bending efficiency is low but also the bending difficulty is great; in addition, the round steel bending by the forming handle is only suitable for the bending of small diameter round steel. When facing large diameter round steel, the required bending force is very large, and the current bending mold is not very suitable. Utility Model Content

[0005] The utility model aims to provide a round steel forming die which can be used in conjunction with a press machine and can bend two grooves on a round steel at one time.

[0006] In order to solve the above technical problems, the technical solution of a round steel forming mold in the utility model is as follows:

[0007] A round steel forming mold comprises an upper mold connected to a pressure head of a press machine and a lower mold connected to a workbench of the press machine, wherein a middle protrusion protruding upward is provided in the middle of the upper end of the lower mold, and a lower mold left protrusion and a lower mold right protrusion protruding upward are respectively arranged on the left and right sides of the middle protrusion at the upper end of the lower mold, and a lower mold arc forming surface is arranged on the opposite side shoulders of the left protrusion of the lower mold and the right protrusion of the lower mold, a left forming groove is formed between the left protrusion of the lower mold and the middle protrusion, and a right forming groove is formed between the right protrusion of the lower mold and the middle protrusion, the upper mold has a left-side forming protrusion of the upper mold that protrudes downward and is used in conjunction with the left-side forming groove, the upper mold also has a right-side forming protrusion of the upper mold that protrudes downward and is used in conjunction with the right-side forming groove, an upper mold middle groove that is used in conjunction with the middle protrusion is formed between the left-side forming protrusion of the upper mold and the right-side forming protrusion of the upper mold, and the first arc forming surface of the upper mold is arranged on the opposite side shoulders of the left-side forming protrusion of the upper mold and the right-side forming protrusion of the upper mold.

[0008] Furthermore, the shoulders on the opposite sides of the left-side molding protrusion of the upper mold and the right-side molding protrusion of the upper mold are provided with a second arc-shaped molding surface of the upper mold.

[0009] Furthermore, the arc-shaped molding surface of the lower mold is located on the upper side of the first arc-shaped molding surface of the upper mold, and the radius of the arc-shaped molding surface of the lower mold is smaller than the radius of the first arc-shaped molding surface of the upper mold.

[0010] Furthermore, the upper mold includes an upper mold base, and the left-side molding protrusion and the right-side molding protrusion of the upper mold are symmetrically arranged. The left-side molding protrusion of the upper mold includes a first upper mold protrusion block, a second upper mold protrusion block, and at least one upper mold standard block arranged between the first upper mold protrusion block and the second upper mold protrusion block, which are respectively fixed to the upper mold base by corresponding standard bolts. The upper mold middle groove is arranged between the left-side molding protrusion of the upper mold and the second upper mold protrusion block of the right-side molding protrusion of the upper mold, and the first arc-shaped molding surface of the upper mold is arranged on the first upper mold protrusion block.

[0011] Furthermore, the lower mold includes a lower mold base, and the lower mold also includes a left lower mold groove and a right lower mold groove that are symmetrically arranged on the left and right. The left lower mold groove includes a first lower mold protrusion block, a second lower mold protrusion block, and at least one lower mold standard block arranged between the first lower mold protrusion block and the second lower mold protrusion block, which are respectively fixed to the lower mold base by corresponding standard bolts, and the middle protrusion is arranged on the second lower mold protrusion blocks of the left lower mold groove and the right lower mold groove.

[0012] Furthermore, the first lower die protruding block is a right-angle structure, and the lower die arc-shaped molding surface is arranged on the first lower die protruding block.

[0013] The beneficial effects of the utility model are as follows: when in use, the upper die of the round steel forming die is fixed on the pressure head of the press, the lower die of the round steel forming die is fixed on the workbench of the press, the round steel to be bent is placed on the upper side of the lower die, the upper die moves downward with the pressure head, the left forming protrusion of the upper die cooperates with the left forming groove to bend the round steel, the right forming protrusion of the upper die cooperates with the right forming groove to bend the round steel, the middle protrusion cooperates with the upper die middle groove of the upper die to bend the round steel in the middle into a corresponding protruding state, the arc-shaped molding surface of the lower die and the upper die are respectively arranged on the lower die and the upper die below the arc-shaped molding surface, which not only ensures that the round steel can be bent into the curvature of the opposite side, but also avoids the problem that two arc-shaped molding surfaces on one die will cause the corresponding die thickness to be large and difficult to demold. In the utility model, the round steel is bent by means of a press, and the required bent round steel can be bent by only one downward movement of the pressure head, which has high work efficiency and reduces the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0015] Figure 1 This is a usage state diagram of Example 1 of a round steel forming die in the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the state of the round steel after forming;

[0017] Figure 3 This is a usage state diagram of Example 2 of a round steel forming die in the utility model;

[0018] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle and upper mold;

[0019] Figure 5 yes Figure 3 Schematic diagram of the structure of the middle and lower molds;

[0020] Explanation of the reference numerals: 1. upper die; 2. lower die; 3. middle protrusion; 4. protrusion on the left side of the lower die; 5. protrusion on the right side of the lower die; 6. arc-shaped molding surface of the lower die; 7. round steel; 8. left-side molding groove; 9. right-side molding groove; 10. left-side molding protrusion of the upper die; 11. right-side molding protrusion of the upper die; 12. middle groove of the upper die; 13. first arc-shaped molding surface of the upper die; 14. second arc-shaped molding surface of the upper die; 15. upper die base; 16. lower die base; 17. first upper die protrusion block; 18. second upper die protrusion block; 19. upper die standard block; 20. standard bolt; 21. first lower die protrusion block; 22. second lower die protrusion block; 23. lower die standard block. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] The embodiment of a round steel forming die in the utility model is as follows: Figure 1~2 As shown: it includes an upper die 1 connected to the pressing head of the press and a lower die 2 connected to the working table of the press, and both the upper die and the lower die are an integrally formed structure.

[0024] The middle part of the upper end of the lower die has an upwardly protruding middle protrusion 3, and the upper end of the lower die is provided with an upwardly protruding lower die left protrusion 4 and a lower die right protrusion 5 on the left and right sides of the middle protrusion, respectively. The lower die arc-shaped molding surface 6 is provided on the opposite side shoulders of the lower die left protrusion 4 and the lower die right protrusion 5. The top of the middle protrusion 3 is an arc-shaped surface with the axis extending along the front-back direction, a left molding groove 8 is formed between the left protrusion of the lower die and the middle protrusion, and a right molding groove 9 is formed between the right protrusion of the lower die and the middle protrusion. The right side surface of the left protrusion of the lower die is a right-angle structure with the bottom surface of the left molding groove, and the left side surface of the right protrusion of the lower die is a right-angle structure with the bottom surface of the right molding groove.

[0025] The upper mold has a left-side molding protrusion 10 that protrudes downward and is used in conjunction with the left-side molding groove. The upper mold also has a right-side molding protrusion 11 that protrudes downward and is used in conjunction with the right-side molding groove. An upper mold middle groove 12 that is used in conjunction with the middle protrusion is formed between the left-side molding protrusion 10 and the right-side molding protrusion 11 of the upper mold. The opposite side shoulders of the left-side molding protrusion 10 and the right-side molding protrusion 11 of the upper mold are provided with an upper mold first arc-shaped molding surface 13.

[0026] The upper mold left side molding protrusion and the upper mold right side molding protrusion are provided with the upper mold second arc molding surface 14. The lower mold arc molding surface 14 is located on the upper side of the upper mold first arc molding surface, and the radius of the lower mold arc molding surface 6 is smaller than the radius of the upper mold first arc molding surface 13. A right-angle recess arranged opposite to the lower mold arc molding surface 6 is formed between the upper mold first arc molding surface 13 and the upper mold.

[0027] When in use, the upper die is fixed on the ram of the press, and the ram can move up and down with the upper die, and the lower die is fixed on the workbench of the press. When bending the round steel 7, the round steel is placed flat on the upper side of the lower die, and the upper die bends the round steel as the ram moves downward, and the required round steel can be bent in one time.

[0028] Embodiment 2 of a round steel forming die in the utility model is as follows Figures 3-5 As shown, in order to improve the versatility and versatility of the round steel forming mold, Example 2 is different from Example 1 in that the upper mold includes an upper mold base 15, and the upper mold left side molding protrusion 10 and the upper mold right side molding protrusion 11 are symmetrically arranged, and the upper mold left side molding protrusion includes a first upper mold protrusion block 17, a second upper mold protrusion block 18 and at least one upper mold standard block 19 arranged between the first upper mold protrusion block and the second upper mold protrusion block, which are respectively fixed to the upper mold base by corresponding standard bolts 20, the upper mold middle groove is arranged between the upper mold left side molding protrusion and the second upper mold protrusion block of the upper mold right side molding protrusion, and the upper mold first arc-shaped molding surface is arranged on the first upper mold protrusion block.

[0029] The lower die includes a lower die base 16, and the lower die also includes a left lower die groove and a right lower die groove arranged symmetrically. The left lower die groove includes a first lower die protrusion block 21, a second lower die protrusion block 22, and at least one lower die standard block 23 arranged between the first lower die protrusion block and the second lower die protrusion block, which are respectively fixed to the lower die base by corresponding standard bolts. The middle protrusion is arranged on the second lower die protrusion block of the left lower die groove and the right lower die groove. The first lower die protrusion block is a right-angle structure, and the arc-shaped molding surface of the lower die is arranged on the first lower die protrusion block.

[0030] The width of the upper die standard block is the same as that of the lower die standard block. When using, select the appropriate number of upper die standard blocks and lower die standard blocks according to the required width of the bending groove of the round steel 7 to be bent. Figure 3 As shown, the left-side molding protrusion of the upper die and the right-side molding protrusion of the upper die each use two upper die standard blocks, and the left-side lower die groove and the right-side lower die groove each use two lower die standard blocks. In other embodiments of the utility model, the left-side molding protrusion of the upper die and the right-side molding protrusion of the upper die can also use only one upper die standard block, and the left-side lower die groove and the right-side lower die groove also use only one lower die standard block, the upper die standard block corresponds to the lower die standard block up and down, the first lower die protrusion block and the second lower die protrusion block are fixed on the left and right sides of the lower die standard block, and the first lower die protrusion block and the second lower die protrusion block are in contact with the left and right side surfaces of the lower die standard block; the first upper die protrusion block and the second upper die protrusion block are fixed on the left and right sides of the upper die standard block, and the first upper die protrusion block and the second upper die protrusion block are in contact with the left and right side surfaces of the upper die standard block.

[0031] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances.

[0032] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0033] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A round steel forming die, characterized in that: The invention comprises an upper die connected with the pressure head of a press machine and a lower die connected with the worktable of the press machine, wherein a middle protrusion protruding upward is provided in the middle part of the upper end of the lower die, a left protrusion of the lower die and a right protrusion of the lower die protruding upward are respectively arranged on the left and right sides of the middle protrusion of the upper end of the lower die, a lower die arc-shaped molding surface is arranged on the opposite side shoulders of the left protrusion of the lower die and the right protrusion of the lower die, a left molding groove is formed between the left protrusion of the lower die and the middle protrusion, and a right molding groove is formed between the right protrusion of the lower die and the middle protrusion, the upper die has a left molding protrusion of the upper die protruding downward and used in conjunction with the left molding groove, the upper die also has a right molding protrusion of the upper die protruding downward and used in conjunction with the right molding groove, an upper die middle groove used in conjunction with the middle protrusion is formed between the left molding protrusion of the upper die and the right molding protrusion of the upper die, and the opposite side shoulders of the left molding protrusion of the upper die and the right molding protrusion of the upper die are arranged with the first arc-shaped molding surface of the upper die.

2. The round steel forming die according to claim 1, characterized in that: The shoulders opposite to the left-side molding protrusion of the upper mold and the right-side molding protrusion of the upper mold are provided with a second arc-shaped molding surface of the upper mold.

3. The round steel forming die according to claim 1, characterized in that: The arc-shaped molding surface of the lower mold is located on the upper side of the first arc-shaped molding surface of the upper mold, and the radius of the arc-shaped molding surface of the lower mold is smaller than the radius of the first arc-shaped molding surface of the upper mold.

4. The round steel forming die according to any one of claims 1 to 3, characterized in that: The upper mold includes an upper mold base, and the left-side molding protrusion and the right-side molding protrusion of the upper mold are symmetrically arranged. The left-side molding protrusion of the upper mold includes a first upper mold protrusion block, a second upper mold protrusion block, and at least one upper mold standard block arranged between the first upper mold protrusion block and the second upper mold protrusion block, which are respectively fixed to the upper mold base by corresponding standard bolts. The upper mold middle groove is arranged between the left-side molding protrusion of the upper mold and the second upper mold protrusion block of the upper mold right-side molding protrusion, and the first arc-shaped molding surface of the upper mold is arranged on the first upper mold protrusion block.

5. The round steel forming die according to claim 4, characterized in that: The lower die includes a lower die base, and the lower die also includes a left lower die groove and a right lower die groove arranged symmetrically on the left and right. The left lower die groove includes a first lower die protrusion block, a second lower die protrusion block and at least one lower die standard block arranged between the first lower die protrusion block and the second lower die protrusion block, which are respectively fixed to the lower die base by corresponding standard bolts. The middle protrusion is arranged on the second lower die protrusion blocks of the left lower die groove and the right lower die groove.

6. The round steel forming die according to claim 5, characterized in that: The first lower die protruding block is a right-angle structure, and the arc-shaped molding surface of the lower die is arranged on the first lower die protruding block.

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